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1Lookup vs Resend
Clearbit (not listed) is similar; among listed tools, SendGrid handles email delivery, not validation.
1LookupVerify emails, phones, and IPs with accuracy. 1Lookup helps businesses validate leads, reduce fraud, and boost outreach performance.Which to pick
Pick 1Lookup if you want…
- Unified contact validation and enrichment via universal credits
- Open-source code (1Lookup/1Lookup on GitHub)
- Integrations with MCP server integration (on 1Lookup's list, not Resend's)
Pick Resend if you want…
- Simple email API with built-in analytics
- Transactional email sending
- The lower starting price: $20/month against $99/month
- Integrations with Node.js, Ruby or Python (on Resend's list, not 1Lookup's)
Side by side
- What it is
- 1Lookup:1Lookup provides an API suite for real-time validation, enrichment and intelligence of emails, phone numbers, IPs and more.
- Resend:Resend provides a developer-focused email API for sending transactional and marketing emails at scale.
- Best for
- 1Lookup:Unified contact validation and enrichment via universal credits
- Resend:Simple email API with built-in analytics
- Who it’s for
- 1Lookup:Developers, sales teams and recruiters needing clean contact data and fraud detection.
- Resend:Developers building apps that need reliable email sending.
- Pricing
- 1Lookup:Freemium
- Resend:Freemium
- Plans
- 1Lookup:Starter $99/mo per month · Growth $299/mo per month · Professional $799/mo per month · Enterprise $1,999/mo per month
- Resend:Free $0 · Pro $20 per month · Scale $90 per month
- Open source
- 1Lookup:Yes, 0 GitHub stars
- Resend:—
- Works with
- 1Lookup:MCP server integration
- Resend:Node.js, Ruby, Python, PHP, Go, Rust, Java, .NET
1Lookup features
- Phone Intelligence. Real-time validation of phone numbers with carrier, porting and risk data.
- Email Validation. Syntax, MX, SMTP and disposable detection to verify email deliverability.
- IP Intelligence. Detect proxies/VPNs, geolocate IPs and assign risk scores.
- Phone Spam Check. Score calls for spam, robocaller detection and reputation tracking.
- Domain Intelligence. Profile domains, detect tech stack and provide security insights.
- Skip Tracing & Enrichment. Reverse lookups and append services for phones, emails, IPs and people.
- Social Suite. Live public data from 13 platforms, including profile checks and video transcripts.
- Audio Transcription. Speech-to-text at 99.9% uptime, billed per minute of audio.
Resend features
- SDKs & REST API. Official SDKs for Node, Ruby, Python, PHP, Go, Rust, Java, .NET and a REST endpoint.
- Test mode. Simulate email events without sending real messages.
- Modular webhooks. Real-time notifications for deliveries, opens, clicks, bounces, etc.
- React Email editor. Create email templates with React components instead of hand-crafted HTML tables.
- Contact management. Import lists, view attributes and segment contacts via the dashboard.
- Analytics & reporting. Track opens, clicks, bounces and view broadcast performance.
- Domain authentication. DKIM, SPF and DMARC setup plus BIMI support for brand logos.
- Dedicated IPs (add-on). Managed IP warming and autoscaling for high-volume senders.
1Lookup vs Resend FAQ
Is 1Lookup or Resend free?+
1Lookup has a free plan; paid plans start at $99/month (Starter). Resend has a free plan; paid plans start at $20/month (Pro).
Which is cheaper, 1Lookup or Resend?+
Resend is cheaper to start with: Resend's Pro plan ($20/month) against 1Lookup's Starter plan ($99/month).
Is 1Lookup or Resend open source?+
1Lookup is open source (1Lookup/1Lookup on GitHub). DevHunt has no public source repository on record for Resend.
Do 1Lookup and Resend integrate with the same tools?+
Their integration lists don't overlap: 1Lookup lists MCP server integration; Resend lists Node.js, Ruby, Python, PHP and 6 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.